Theoretical morphology of tetrapod skull networks
Theoretical morphology of tetrapod skull networks
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DOI：
10.1016/j.crpv.2013.08.003
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发表时间：
2014-01-01
影响因子：
1.1
通讯作者：
Rasskin-Gutman, Diego
中科院分区：
文献类型：
--
作者：
Esteve-Altava, Borja;Rasskin-Gutman, Diego
最近，四足动物头骨的网络模型（其中节点代表骨骼，链接代表缝合线）为四足动物头骨中骨骼数量进化减少的结构约束提供了新的见解，称为威利斯顿定律。在这里，我们已经建立了零网络模型衍生的生成形态空间的四足动物头骨使用随机，优先附件和几何邻近增长规则。我们的研究结果表明，几何接近是最好的零模型来解释两个结构约束下的头骨结构的差异：双边对称性和存在的不成对的骨头。这个形态空间的时间占领的分析，伴随着威利斯顿定律，表明四足动物的头骨已经遵循了一条进化的道路，朝着更受约束的形态组织。(C)2013年，科学院。由Elsevier Masson SAS出版。All rights reserved.
Network models of the tetrapod skull in which nodes represent bones and links represent sutures have recently offered new insights into the structural constraints underlying the evolutionary reduction of bone number in the tetrapod skull, known as Williston's Law. Here, we have built null network model-derived generative morphospaces of the tetrapod skull using random, preferential attachment, and geometric proximity growth rules. Our results indicate that geometric proximity is the best null model to explain the disparity of skull structures under two structural constraints: bilateral symmetry and presence of unpaired bones. The analysis of the temporal occupation of this morphospace, concomitant with Williston's Law, indicates that the tetrapod skull has followed an evolutionary path toward more constrained morphological organizations. (C) 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.